Double worm water or steam motor



Jan. i935., L.; L. Foss DOUBLE WORM WATER OR STEAM MOTOR A Filed July 14, 1953 @u NN mw 3mm Leland 11.17086,

Patented Jan. 15, 1935 UNITED s'mjrrzsl DQUBLEWORMWATR on s'irlmiyrMorny Y 'Leland LQFpss, statesbprq,oa;' ,y l Applieatian July 14, 1933, serial No'. 686.47m'

' ioiaiima"(01.253--14o f-gjv The object of my invention is to provide a novel double worm water or steam motor;l to provide. a

novel arrangement of a rotorY with left 'hand' worms, and a rotor with right handworms, `the rotors being mounted on the same shaft an'd posi-` tioned at opposite ends ofthe same casingy'to provide a tangential Water `intake passage disposed tangentially between the rotors, whereby a. water or steam whirlpool of high speed will be' created before the motive power fluid enters the respective worms arranged onv either side of the.

aforesaid tangentialintake passage. i.

It is a special object of my invention to prevent friction which would cause.v loss of power, -inas` much as one of the rotors pulls vas'much one way as the other does inithey opposite direction, one

of said rotors havirigright handed'spiral threads or worms and the other"'rotor having left handed spiral threads or worms, .the blades being of ther same width, length and pitch'.:v f1' V It is also an object of my invention to provide a motor of this type which willproduce twicevthe power of any other water wheel'ormotorusing the same amount of -water orsteam.

It is also an objectofmy invention to provide Figure 1 is a vertical lo'ngi'tuclinal"j section through the casing and bearings of my motor, parts of the apparatus being shown in elevation; and

Fig. 2 is a transverse section on line 2-2 of Fig. 1.

Like numerals designate like parts in each of the views.

Referring to the accompanying drawing, I provide a cylindrical casing 1, a motor or drive shaft 2, and spaced rotors 4 and 6 mounted on the respective hubs 5 and 7. The worms of rotor 4 are right hand; and the worms of rotor 6 are left hand. The rotors 4 and 6 are disposed at spaced portions of the casing 1 and arranged on either side of a central tangentially arranged water intake passage 31.

As shown in Fig. series of worms which one-half way around the hub. This length of 1, each rotor has a the worm relative to its hub is important, and

extend approximately v worm .should-be' not lessthan one third nor more than `two'thirds the distance around the hub fromend to end of each rotor, and the rotors are Vexactlybalanced yasi-'to size, weight and pitchiof :the worinsgias shown.'v `-The tangential intake passage' 3 1 may be -disposed 'eitherI horizontally Aor I vertifv cally, and 4opens l into the whirlpool i chamber 3 tangentially fthereoffwith. a' `reduced .mouth `as shown to increase pressure ofthe :water entering chamber 3." The whirlpool -chamb'ery contains nothingvbut water or steamand thereby no trash or hard substance entering 'could caus'ethe wormsy of the rotors to 'be b`roken,'as` therotors l are' disr posed in the casing' l beyond the whirlpool cham'- ber 3 as shown, f f A diiculty 'of prior waterwheels is thus avoided# r r .y

1 'The motorfshaft 2 is provided with a conical end 13 which is mounted inthe conicaly recess 12 of bearingl-l whichbearingf is keptf infplace by `a` suitable nut 114'.' provide an fend bearing member 9 carried by the spider-legs l'which are suitably afixed vto theend of themot'or casing 1'.' I provide suitable legsor supports 15 fory the casing: 1 which are bolted tothe oo-rorlbase 17 by bolts 16.I`v The rotorvvhubs '5; and: 7 are secured. to -the motor shaft2 by suitable'mean's such-as keys 8.'

I provide an end fram'e l181a`nd:bearing 19 fori the end of the motor'shaft 2, asshown in Figgl. I alsov provide bearings 20 vand `21` for the driven shaft 22 which latter shaft' carries a gear-23 meshing with the gear-25 'on/'the motor shaft'- 2. i

Gear `25 is affixed' to-motor shaft 22 by set screws or keys 26, and gear 23 is affixed to'shaft 23by set screws or keys 24. I provide'afcollarf27 on driven'sha'ft` 22 secured-to' same by set. screw28. I-y also provide a sleeve' coupling 29, l mounted on." driven shaft 22 and secured by key 30. The function vof this coupling 29 is to operatively connect this shaft with another driven shaft.

As shown in Fig. 2, I provide a gateway 32 and gate 33 for opening and closing the conduit 34 which communicates with the water intake passageway 31. y

In operation water flows through conduit 34 past gate 33 and through the tangential inflow passage 31 into the whirlpool chamber 3 where it acquires a high rate of speed and flows from said chamber into the spiral passages of the reversely threaded worms 4 and 6 of the respective rotors, as their spiral blades are of the same pitch, same size, and same length, the thrust of one rotor exactly balances the thrust of the other rotor, thereby eliminating friction and increasing the power and speed ofthe motor. The tangential disposition of passage 31; its reduced mouth, as

shown in Fig. 2; and the open whirlpool chamber 2, as shown in Fig. 1, are vital elements of the invention and essential to attain the high speed of water in the whirlpool which increases the speed and power of the rotors. The heavier you load the motor the harder it pulls and the less water it uses, up to the stopping point, at which point it only uses about one-third the amount of water used when the motor is running one-halft'speed pulling .or grinding fmeal; and the difference .between lthe amount .of water. `used when wheel is running idle and when the motor is stopped is about one-sixth as much as when running idle. The reasonfor this'is the water is circling in the Whirlpool inftheoppesitedlrection from that which it has to circle tto-get .pnh To escape from the whirlpool the waterhas tofollow the worms of the motor,- lwhich or spiral just the opposite way to that Which-the Y water travels in the whirlpool, causing the motor to :have Vmore xthan :twice the speed andamwer that it would have if the water A.carne straight vat the :motor rotors.

1n the steam type of rmy invention thewater.

may fbe Aconveyed away from the motor :bynpnes to condense .thezsteam backz'into water. Likewise.

in any water wheel where' it :is yfound `'desirable the water :may .the taken .away fromrthe .motor in pipes to `prevent deaking or wetting the .door on whichthe :motor @is This alo= a.pplies to .the water motor Vtype. where-.the `water zcomes in ,pipesltozthe rmotorandds-carried awaylnfpes. Sofyou could :not :tell whether the `motor 'was run by waterl orsteam withautvtestingit withthe hand to ysee whethersit was-imho! cold.

I contemplate using a series off-the lwomit dn balanced arrangement, `'and nf 4mmroxlnmtelsf @he length shown .in the drawing .andgmith pitch of worm'desired, it A.being:required that the worms be -balancedlas $0 ytand "pitch .and

:It .fis also contemplated that 1 may Schanze the pitch of the blade to :any degree that :might be' desired and to wary the number fof -wnrms oneach rotor, it fhowever being required fthat., as

. shown in Fig. 1.a series of worms .be provided on each rotor tandfthat ythe rotors ,-befof .the enmesize, weight-and pitch of aworxns.y

. .'Itis also contemplated wthat zthe machinelmaty be `built fof :any suitable .size according to thel pressure `:required feither by steam ior vater.

water passage disposed along the central portion of and opening tangentially into said casing, a shaft extending longitudinally of the casing, spaced and balanced rotors mounted on said shaft and positionedto receive water from an interposed whirlpool chamber, the aforesaid interposed Whirlpool chamber, each of said rotors having a series of reversely disposed worms of like pitch and length, said worms extending not less than one-th'rrdnor `more thantwo-thirds of the distance around the 'hub of rotors.

2. In a double worm water motor, the combina- Ltion of a casing, an inflow Water passage opening tangentially into said casing at an intermediate 'portion' thereof, `said passage being reduced at its month, a ywhirlpool chamber into which said inflow water passage opens to cause the Water to whirl -in 7the chamber in the opposite direction v.from the direction which it has to follow in passbalanced rotors mounted, fgearing operativelyVv connected `11o/.theshaft, and a shaft rand lpulley operatively connected to Vsaid gearing.

4. In a double-worm water .or `steam motor,A

the 4combination .of a .cylindrical casing open vat both 4ends and ,having :frame :members extending out 'from :the Lopen-lends .of :the leasing, lbearings insaidframe members :spaced .substantially :from

the :endsfof 'the teasing', .a .drive .shaft mounted Vin said bearings, .spaced :and balanced rotors mounted .on saidxshaft, .said .rotors having are," versely disposed worms extending .only .part away.

around :the hub aof the amotor, an A'inflow water passage :opening ltangentl'ally .into the :casing .and reduced at its mouthand being fofV afwidthr` approximately vtwicethelength of either -of the' rotors inereasethelpressure ofthe water and the power ofthe rnotor, and awhirlpoolrchaanber between the rotors Aand into which the inflow passage, opens tangentially 'to cause a whirling motonof the Waterbefore entering the worms .of themotor andescapngin adirection reversemo its whirling motion .whereby .the heavier Athe lload on the rotors the less waterit uses upto `the point of stopping therotors. l

. L, Foss. 

